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【简答题】
生产者市场具有什么特点?
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举一反三
【单选题】. Many experts agree that once these treasures are _______ to the air, great harm will be done to them. So they think it better not to unearth the treasures.
A.
exposed
B.
threatened
C.
constructed
D.
conserved
【单选题】Experts think that _____ recently discovered painting may be _____ Picasso. [ ]
A.
the; 不填
B.
a; the
C.
a; 不填
D.
the; a
【单选题】It is improper to _____ between pupils according to their family background.
A.
different
B.
differentiate
【单选题】According to the fourth paragraph. the discovery of some experts disapproves the belief that loyal customers
A.
recommend the products to other people.
B.
are sensitive to the price of the product.
C.
need less sewice provided by a company.
D.
contribute more to the image of a company.
【单选题】对于采用万用表区分红外晶体管描述不正确的是：
A.
无红外光照情况下，红外三极管正反向电阻为∞
B.
无红外光照情况下，红外二极管正向小电阻，反向电阻∞
C.
有红外光照情况下，红外三极管正反向都为小电阻
D.
有红外光照情况下，红外发射二极管正向小电阻，反向∞
【单选题】Public health experts say that (the) money one spends (avoiding) illness is (less) than the cost (to be) sick.
A.
the
B.
avoiding
C.
less
D.
to be
【简答题】方桩同一纵向受力钢筋不宜设置()个以上的接头。
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